There shouldn't be any significant heat at that point. Only ambient engine bay temp.

Any flexible hosing should do it, if it fits properly.

Assuming the hose comes unattached from the plastic bits, Paul Grant or Abran are your contacts here.

 

I don't have any, sorry.

 

the deteriorated hose part i just duct taped. been running great for 3+ years that way. but that won't help if you need the two plastic parts on each end... i'm sure paul grant has some

 

I have located a used OEM snorkel for $35. Thanks.